Name:Glistening Extractor
ManaCost:2 U B
Types:Artifact
K:etbCounter:OIL:4
T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | IsPresent$ Card.Self+counters_GE1_OIL | Execute$ TrigSeek | TriggerZones$ Battlefield | TriggerDescription$ At the beginning of your upkeep, if there are one or more oil counters on CARDNAME, seek a card with mana value equal to the number of oil counters on CARDNAME, then remove an oil counter from CARDNAME.
SVar:TrigSeek:DB$ Seek | Type$ Card.cmcEQX | SubAbility$ DBRemoveCounter
SVar:DBRemoveCounter:DB$ RemoveCounter | CounterType$ OIL
SVar:X:Count$CardCounters.OIL
Oracle:Glistening Extractor enters with four oil counters on it.\nAt the beginning of your upkeep, if there are one or more oil counters on Glistening Extractor, seek a card with mana value equal to the number of oil counters on Glistening Extractor, then remove an oil counter from Glistening Extractor.
